Question 895 Rules of the Road

The correct answer is D) Answer with one prolonged blast. The reasoning is based on the International and Inland Navigation Rules, specifically Rule 34(e), which states that "when a power-driven vessel is approaching a bend or an area of a channel or fairway where other vessels may be obscured by an intervening obstruction, such vessel shall sound one prolonged blast." This alerts other vessels in the area to your presence and intended movement. The other options are incorrect because: A) Sounding the danger signal is not the appropriate response in this situation; B) Stopping engines and drifting would not adequately communicate your presence to the other vessel; and C) Backing engines is not the required action according to the navigation rules.